4th Order vs. 6th Order? - Car Audio Classifieds!
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Old 05-23-2011, 06:33 PM
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Default 4th Order vs. 6th Order?

Hi, I'm new on this forum, and I've always wondered the differences and advantages between the two. Any good write ups on it? Or just knowledgeable people on it? Thanks!
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Old 05-23-2011, 06:42 PM
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80inches is the man on 4th orders.
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Old 05-23-2011, 06:45 PM
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yes 80INCHES is the man!! he also knows about 6th orders.
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Old 05-23-2011, 07:26 PM
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Thanks! I was more curious about a write up on them. I'm not quite ready to do a bandpass...yet, I require a more suitable vehicle. Haha
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Old 05-23-2011, 07:30 PM
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be careful of ANY one claiming they can design a bandpass over the internet
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Old 05-23-2011, 07:39 PM
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Quote:
Originally Posted by korey_hofer View Post
be careful of ANY one claiming they can design a bandpass over the internet
I appreciate it. I was more looking for general reading than a design though.
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Old 05-23-2011, 07:43 PM
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4th order bandpasses have 2 resonance's, and 6th orders have 4!

When doing bandpasses you have to group the resonances to your liking or so that the response is reasonable.

It is good to measure the real world impedance position of the resonances with something like a woofer tester so that you can tell how the design is really comming out because if you use winisd it may look all good and dandy, but the real world tunning and loss of each chamber and port may change things a little, and then there is the possibility that you weren't very accurate about the net volume inside.

Also, cabin gain will change a pretty looking predicted response from something like winisd, alot of people may not realize or forget that cabin gain changes what the response really looks like.

Like was said, don't listen over the net, alot of people use calculators only and or ratios and that wont help.
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Old 05-23-2011, 07:45 PM
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Guys usually act secretive when giving info about bandpass designs. Best advice is gonna be trial and error. There's a couple write ups on 12v's website.
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Old 05-23-2011, 07:46 PM
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Quote:
Originally Posted by Huricain3 View Post
4th order bandpasses have 2 resonance's, and 6th orders have 4!

When doing bandpasses you have to group the resonances to your liking or so that the response is reasonable.

It is good to measure the real world impedance position of the resonances with something like a woofer tester so that you can tell how the design is really comming out because if you use winisd it may look all good and dandy, but the real world tunning and loss of each chamber and port may change things a little, and then there is the possibility that you weren't very accurate about the net volume inside.

Also, cabin gain will change a pretty looking predicted response from something like winisd, alot of people may not realize or forget that cabin gain changes what the response really looks like.

Like was said, don't listen over the net, alot of people use calculators only and or ratios and that wont help.
This^^^^^
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Old 05-23-2011, 07:47 PM
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Haha, so as complicated as I figured they were, turns out they are even more so. That just makes me more eager to try them one day!
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